Vibration sensor



FIG. 1 is a rear, bottom, right perspective view of a first embodimentof a vibration sensor showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof; and

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a rear, bottom perspective view of a second embodiment of avibration sensor showing our new design;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left side elevational view thereof; and

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a front, bottom perspective view of a third embodiment of avibration sensor showing our new design;

FIG. 10 is a front elevational view thereof.

FIG. 11 is a right side elevational view thereof; and

FIG. 12 is a bottom plan view thereof.

FIG. 13 is a front, bottom perspective view of a fourth embodiment of avibration sensor showing our new design;

FIG. 14 is a front elevational view thereof.

FIG. 15 is a right side elevational view thereof; and

FIG. 16 is a bottom plan view thereof.

CLAIM The ornamental design for a vibration sensor, as shown anddescribed.